LLVM  10.0.0svn
LowerConstantIntrinsics.h
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1 //===- LowerConstantIntrinsics.h - Lower constant int. pass -*- C++ -*-========//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 /// \file
9 ///
10 /// The header file for the LowerConstantIntrinsics pass as used by the new pass
11 /// manager.
12 ///
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_TRANSFORMS_SCALAR_LOWERCONSTANTINTRINSICS_H
16 #define LLVM_TRANSFORMS_SCALAR_LOWERCONSTANTINTRINSICS_H
17 
18 #include "llvm/IR/Function.h"
19 #include "llvm/IR/PassManager.h"
20 
21 namespace llvm {
22 
24  PassInfoMixin<LowerConstantIntrinsicsPass> {
25 public:
27 
28  /// Run the pass over the function.
29  ///
30  /// This will lower all remaining 'objectsize' and 'is.constant'`
31  /// intrinsic calls in this function, even when the argument has no known
32  /// size or is not a constant respectively. The resulting constant is
33  /// propagated and conditional branches are resolved where possible.
34  /// This complements the Instruction Simplification and
35  /// Instruction Combination passes of the optimized pass chain.
37 };
38 
39 }
40 
41 #endif
This class represents lattice values for constants.
Definition: AllocatorList.h:23
F(f)
A CRTP mix-in to automatically provide informational APIs needed for passes.
Definition: PassManager.h:373
A set of analyses that are preserved following a run of a transformation pass.
Definition: PassManager.h:154
PreservedAnalyses run(Function &F, FunctionAnalysisManager &)
Run the pass over the function.
A container for analyses that lazily runs them and caches their results.
This header defines various interfaces for pass management in LLVM.